CN101063603B - Furnace for performing dilatometric assays - Google Patents
Furnace for performing dilatometric assays Download PDFInfo
- Publication number
- CN101063603B CN101063603B CN2007101012400A CN200710101240A CN101063603B CN 101063603 B CN101063603 B CN 101063603B CN 2007101012400 A CN2007101012400 A CN 2007101012400A CN 200710101240 A CN200710101240 A CN 200710101240A CN 101063603 B CN101063603 B CN 101063603B
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- heating element
- sample chamber
- stove
- window
- sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
- G01N25/4806—Details not adapted to a particular type of sample
- G01N25/4826—Details not adapted to a particular type of sample concerning the heating or cooling arrangements
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- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
A furnace for performing dilatometric assays includes a closable sample chamber on which windows for the passage of beams are provided, a sample carrier having a horizontal contact surface for receiving samples situated in the sample chamber and the sample chamber being heatable via one or more heating elements. The heating elements are implemented as essentially flat on the side facing toward the sample carrier and delimit the sample chamber on the top side and the bottom side, the heating elements extending on all sides beyond the sample carrier in the horizontal direction. An especially uniform temperature distribution on the sample is thus ensured.
Description
Technical field
The present invention relates to a kind of stove that is used to implement the dilatometry check.
Background technology
By the known a kind of equipment of change in size when being used to measure sample and meeting with temperature fluctuation of EP1199541, wherein, between two optical systems, establish a sample mount.Sample is here centered on by a tubulose body of heater, whereby can be with corresponding temperature action on sample.Here an important problem is, will produce the even temperature field in the stove that is used to implement this dilatometry check.In sample area, the thermograde line should extend as far as possible parallel to each other, at least with respect to the sample symmetry, thus, obtains consistent temperature situation as far as possible along whole sample.
The known stove of the above-mentioned type starting point so far is, the homogeneity in temperature field reaches by a kind of configuration of tubulose body of heater in sample chamber, and wherein, heating element is in the sidewall of sample chamber and corresponding to tubular structure and extends along a very big height.There is following shortcoming in the stove of known this structure type, in the zone of sample chamber, can reach an only approximate even temperature field, and specimen surface has the huge distance of difference from heating element, and this will see where sample is contained in and which kind of geometric configuration sample has.In addition, sample chamber be difficult to by near and not too be applicable to automatic charge.
Summary of the invention
Therefore the objective of the invention is to create the stove of the described type of a kind of preface, wherein, the temperature field in sample chamber can reach higher homogeneity, and, can realize the accessibility that sample chamber is better.
For this reason, the invention provides a kind of stove that is used to implement the dilatometry check, comprise a closed sample chamber, on sample chamber, be provided with the window that is used to pass beam, wherein, a specimen mounting is set in described sample chamber, this specimen mounting has a Horizontal Branch bearing surface that is used to lay sample, wherein, sample chamber can is characterized by by the heating of a plurality of heating elements: described heating element is designed to plane basically in that side that faces specimen mounting, and described sample chamber is the boundary at upside with a upside heating element, is the boundary at downside with a downside heating element, wherein, the heating element along continuous straight runs exceeds the specimen mounting extension in all sides; The length of heating element or diameter many times than the supporting face length of specimen mounting; Sample chamber has the little height that manys times of diameter than sample chamber between upside and downside heating element; And sample chamber is cylindric, and specimen mounting radially is arranged in the sample chamber center.
By the present invention, heating element is designed to plane basically in that side that faces specimen mounting, and constitutes sample chamber on the border of upside and downside, and wherein, the heating element along continuous straight runs exceeds specimen mounting in all sides and extends.The special advantage of this stove is, radially or horizontal direction see, sample chamber be equipped with on the heating element wall and lower wall more much longer than being in the sample that is contained in central authorities between them, thereby at the sample chamber center temperature variation is caused minimum disturbing effect, and set up the even temperature distribution at sample area.
The homogeneity in temperature field can also take following measure to improve in sample chamber: sample chamber has the little height that manys times of diameter than sample chamber between upside and downside heating element.At this, by appropriate design, sample chamber is a hollow cylinder, and correspondingly, upside and downside heating element are circular.
By another favourable design of the present invention, the sidewall of upside and downside heating element and sample chamber is lined with heat-proof device.
A kind of favourable structure of stove is that body of heater is divided into the upper and lower, wherein, passes sample chamber at the interphase between top and the bottom between upside and downside heating element.Therefore can take top away from the bottom of body of heater, thereby can also be the sample chamber charging easily also near sample chamber easily by Robotics.Rightly, here body of heater has cylindrical basic shape, the dead in line of its axis and sample chamber.
Radially in the bottom of stove, be provided with an optical window at opposite side respectively, be used for the course of the beam of optical measuring device.
Stove the time vacuumizes and fills blanket gas in work.Relative measures as at the interphase place with at the seal at optical window place, guarantees to implement this working method.
Description of drawings
Describe the present invention referring to accompanying drawing in detail by two kinds of embodiment.Wherein:
Fig. 1 is by the cross-sectional side elevational view of a kind of embodiment of stove of the present invention;
The top view in cross-section of Fig. 2 stove shown in Figure 1;
The skeleton view of Fig. 3 stove shown in Figure 1;
Skeleton view after open on Fig. 4 stove shown in Figure 1 top;
A kind of amended embodiment skeleton view of Fig. 5; And
Skeleton view after open on Fig. 6 stove shown in Figure 5 top.
Embodiment
Fig. 1 to 4 represents the stove 1 with cylindrical basic shape.Stove 1 is divided into top 2 and bottom 3, and they can be moved away from each other, and can close up each other along horizontally extending interphase 4 superimposed ground.Lifting and loading onto of top 2 can be undertaken by hinge 5, and it is fixed on top 2 and the bottom 3.At opposite side, top 2 is provided with handle 6.
Center in cylindrical furnace 1 inside, top 2 and bottom 3 are round a sample chamber 8, and it has flat hollow cylinder configuration and is located at coaxially in the body of heater 1.Interphase 4 along continuous straight runs between top 2 and bottom 3 pass described sample chamber 8.Along with top 2 is contained on the bottom 3, sample chamber 8 is closed.Sample chamber 8 is the boundary at upside with heating element 9, and it can have a kind of top 2 that is located at for example to be the configuration of circular discs on the downside of interphase 4 directions basically.In a similar fashion, sample chamber 8 is the boundary with bottom heating element 10 downwards, and here circular heating element 9 and 10 is identical from one another.
Hollow cylinder sample chamber 8 has the little height that manys times of diameter than sample chamber 8.Sample chamber by in form be around sidewall 13 encirclements of cylindrical form interior surface, the seam of interphase 4 is passed its extension.The diameter of sample chamber 8 and upper and lower heating element 9 and 10 cardinal principles are onesize, and they surround at edge side insulated device 19.Heat-proof device in body of heater 1 top 2 and bottom 3 is set to, and makes that when closing top 2 sample chamber 8 is heat insulation, and can be heated to and for example reach 2000 ℃ high temperature.
Near pedestal 14, also have a sample thermopair 18, and in heating plate 10 or on a control thermopair 17 is arranged.In addition, for stove 1 is at high temperature worked, also in top 2 and bottom 3, establish water cooling plant 25.
Be adjacent to stove 1 optical system is set, it measures the length variations that depends on temperature of sample 11.
Optical system comprises an optical transmitter 30 and a receiver 31.Transmitter 30 has highly stable the formal of light of a kind of wavelength of emission to be the light source of high-power GaN-LED 32, and a fan diffuser 33 and radiative abreast collimator lens 34 are arranged.Consequent parallel course of the beam 35 passes the window 21 of design on bottom 3 and enters and hit there sample 11.The beam that has only miss sample 11 just penetrates by window 20 again, and window 20 is located on the bottom 3 opposed that side with window 21.
Form the shade beam thus, they at first hit wave filter 36 at receiver side 31.Wave filter 36 can be designed to, and the beam that it only allows to have the wavelength of being launched by high-power GaN-LED 32 passes through.Then, beam hits high-speed straight-line ccd sensor 38 then by an optical system 37 that comprises the heart far away of one or more lens.The signal of sensor 38 is handled at A/D converter, further passes to digital edge recognition processor and CPU element then.
A kind of modified form of implementation of Fig. 5 and 6 expression stoves 1 ' wherein, replaces hinge 5, adopts to promote and slew gear 7.Top 2 is by promoting and slew gear 73 lifts also side direction turn-off from the bottom, thereby can be from the top near sample chamber 8, so that insert or take out sample 11.Other aspects, stove 1 ' designs equally with the above embodiments.
Claims (6)
1. one kind is used to implement the stove that dilatometry is checked, comprise a closed sample chamber (8), on sample chamber, be provided with the window (20 that is used to pass beam (35), 21), wherein, a specimen mounting (14) is set in described sample chamber (8), this specimen mounting has a Horizontal Branch bearing surface that is used to lay sample (11), wherein, sample chamber (8) can be by a plurality of heating elements (9,10) heating, it is characterized by: described heating element (9,10) be designed to plane basically in that side that faces specimen mounting (14), and described heating element has a upside heating element and a downside heating element, described sample chamber (8) is the boundary at upside with described upside heating element (9), is the boundary at downside with described downside heating element (10), wherein, heating element (9,10) along continuous straight runs exceeds specimen mounting (14) extension in all sides; The length of heating element (9,10) or diameter many times than the supporting face length of specimen mounting (14); Sample chamber (8) has the little height that manys times of diameter than sample chamber (8) between upside heating element (9) and downside heating element (10); And sample chamber (8) is cylindric, and specimen mounting (14) radially is arranged in the sample chamber center.
2. according to the described stove of claim 1, it is characterized by, described stove is divided into top (2) and bottom (3), the plate-like upside heating element (9) on top is set in described top (2), and the plate-like downside heating element (10) that the bottom is set in described bottom (3), wherein, top (2) are designed to and can (3) take away from the bottom.
3. according to the described stove of claim 2, it is characterized by, between upside heating element (9) and downside heating element (10), pass sample chamber (8) at the horizontal interphase (4) between top (2) and bottom (3).
4. according to the described stove of claim 1, it is characterized by, sample chamber (8) is a hollow cylinder, and upside heating element (9) and downside heating element (10) are designed to circular.
5. according to the described stove of one of claim 1 to 4, it is characterized by, the sidewall (13) of heating element (9,10) and sample chamber (8) is lined with heat-proof device (19) in that side back to sample chamber (8).
6. according to the described stove of claim 1, it is characterized by, described stove is divided into top (2) and bottom (3), described window has first window and second window, described first window (20) that is adjacent in the bottom (3) is provided with light source (32), and described second window (21) is located at the opposite side of bottom (3), is provided for the sensor of test samples (11) length in abutting connection with this second window.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006019434A DE102006019434B4 (en) | 2006-04-24 | 2006-04-24 | Furnace for performing dilatometric tests |
| DE102006019434.9 | 2006-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101063603A CN101063603A (en) | 2007-10-31 |
| CN101063603B true CN101063603B (en) | 2011-04-13 |
Family
ID=38426491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101012400A Active CN101063603B (en) | 2006-04-24 | 2007-04-24 | Furnace for performing dilatometric assays |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20070248493A1 (en) |
| EP (1) | EP1850122B1 (en) |
| CN (1) | CN101063603B (en) |
| AT (1) | ATE540309T1 (en) |
| DE (1) | DE102006019434B4 (en) |
| ES (1) | ES2382637T3 (en) |
| PT (1) | PT1850122E (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261237B (en) * | 2008-04-03 | 2010-06-09 | 武汉科技大学 | High-temperature thermodilatometer for measuring refractory materials large test sample and method of use thereof |
| US8992076B2 (en) | 2010-12-15 | 2015-03-31 | Waters Gmbh | Dilatometer for measuring metallic samples |
| DE102011051561A1 (en) * | 2011-07-05 | 2013-01-10 | BÄHR-Thermoanalyse GmbH | Dilatometer for the measurement of metallic samples |
| CN102679865A (en) * | 2011-03-07 | 2012-09-19 | 上海微电子装备有限公司 | Temperature control box, measuring system and method for measuring thermal drift coefficient of interferometer |
| CN103063575B (en) * | 2011-10-19 | 2015-05-20 | 中国石油化工股份有限公司 | Fluid inclusion laser ablation sample pool |
| CN104181191B (en) * | 2014-01-23 | 2016-08-17 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | The test of expanded rubber bulk modulus and sample preparation device and method |
| CN105973926A (en) * | 2016-04-28 | 2016-09-28 | 华南理工大学 | Apparatus for measuring thermal expansion coefficient of powder material, and method thereof |
| CN106596620A (en) * | 2016-12-14 | 2017-04-26 | 电子科技大学 | Small heating device for high-temperature experiments of metal micro-miniature test samples |
| CN107219248A (en) * | 2017-06-16 | 2017-09-29 | 山东大学 | A kind of heating box structure and application method for being used to observe piezoelectric device temperature distortion |
| CN107607046B (en) * | 2017-08-24 | 2019-10-25 | 武汉大学 | A kind of boiler expansion monitoring system based on plastic optical fiber looped network |
| CN112034086B (en) * | 2020-07-17 | 2022-07-12 | 天津精诚建筑工程检测试验有限公司 | Safe type burning detection platform |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060146345A1 (en) * | 2004-04-29 | 2006-07-06 | Robertson Eric P | Methods and apparatus for measurement of a dimensional characteristic and methods of predictive modeling related thereto |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE859533C (en) * | 1950-03-31 | 1952-12-15 | Carl Schreck Dr | Method and device for determining the thermal expansion coefficient of solid materials |
| DE2263340C3 (en) * | 1972-12-23 | 1980-01-10 | Linseis Messgeraete Gmbh, 8672 Selb | Method for the non-contact measurement of temperature-related strains on a test body |
| US4313679A (en) * | 1979-11-29 | 1982-02-02 | The United States Of America As Represented By The Secretary Of The Air Force | Test sample support assembly |
| US4923307A (en) * | 1989-01-24 | 1990-05-08 | Eastman Kodak Company | Dilatometer |
-
2006
- 2006-04-24 DE DE102006019434A patent/DE102006019434B4/en not_active Expired - Fee Related
-
2007
- 2007-04-12 EP EP07106087A patent/EP1850122B1/en active Active
- 2007-04-12 AT AT07106087T patent/ATE540309T1/en active
- 2007-04-12 ES ES07106087T patent/ES2382637T3/en active Active
- 2007-04-12 PT PT07106087T patent/PT1850122E/en unknown
- 2007-04-24 US US11/790,269 patent/US20070248493A1/en not_active Abandoned
- 2007-04-24 CN CN2007101012400A patent/CN101063603B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060146345A1 (en) * | 2004-04-29 | 2006-07-06 | Robertson Eric P | Methods and apparatus for measurement of a dimensional characteristic and methods of predictive modeling related thereto |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006019434A1 (en) | 2007-10-25 |
| ES2382637T3 (en) | 2012-06-12 |
| US20070248493A1 (en) | 2007-10-25 |
| ATE540309T1 (en) | 2012-01-15 |
| PT1850122E (en) | 2012-04-13 |
| DE102006019434B4 (en) | 2011-03-31 |
| CN101063603A (en) | 2007-10-31 |
| EP1850122A2 (en) | 2007-10-31 |
| EP1850122A3 (en) | 2008-05-28 |
| EP1850122B1 (en) | 2012-01-04 |
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| C14 | Grant of patent or utility model | ||
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